docs: kernel-parameter: Improve the description of nr_cpus and maxcpus

Browse source

From the old description people still can't get what's the exact
difference between nr_cpus and maxcpus. Especially in kdump kernel
nr_cpus is always suggested if it's implemented in the ARCH. The
reason is nr_cpus is used to limit the max number of possible cpu
in system, the sum of already plugged cpus and hot plug cpus can't
exceed its value. However maxcpus is used to limit how many cpus
are allowed to be brought up during bootup.

Signed-off-by: Baoquan He <bhe@redhat.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

...

This commit is contained in:

Baoquan He 2016-08-24 13:06:45 +08:00 • committed by Jonathan Corbet

parent 6d232c8015

commit 7c142bfee6

1 changed files with 13 additions and 7 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

20

Documentation/kernel-parameters.txt

View file